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Order Abatement of Linear Dynamic Systems Using Renovated Pole Clustering and Cauer Second Form Techniques

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Abstract

A mixed-method for the order abatement of large-scale linear dynamic systems (LSLDSs) into desired low order systems is proposed. The denominator of the abated system (AS) is obtained by the renovated pole clustering technique, while the numerator is obtained by Cauer second form technique. The AS is stable if the original system (OS) is stable and retains all the essential time and frequency response specifications of the OS. The proposed mixed method is an improved version of the modified pole clustering technique. As we know, the magnitude of the pole cluster center plays an important role in the clustering technique for the abatement of LSLDS. Less magnitude of pole cluster center, better approximations matching of AS with the OS has occurred. The magnitude of dominated pole cluster centers obtained by the modified pole clustering technique or other pole clustering techniques is large compared to the proposed technique. Hence the proposed technique provides better approximations matching between OS and AS during the transient period compared to other clustering techniques, which supports the replacement of OS with better AS. The efficacy of the proposed technique is verified by taking three numerical examples and compared with other recent and famous techniques available in the literature.

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  1. Department of Electrical Engineering, Gautam Buddha University, Greater Noida, UP, 201312, India

    Abha Kumari & C. B. Vishwakarma

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  1. Abha Kumari
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Kumari, A., Vishwakarma, C.B. Order Abatement of Linear Dynamic Systems Using Renovated Pole Clustering and Cauer Second Form Techniques. Circuits Syst Signal Process 40, 4212–4229 (2021). https://doi.org/10.1007/s00034-021-01673-1

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